"use strict"; 'use client'; Object.defineProperty(exports, "__esModule", { value: true }); exports.useTextNavigation = useTextNavigation; var React = _interopRequireWildcard(require("react")); function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); } function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; } const TEXT_NAVIGATION_RESET_TIMEOUT = 500; // milliseconds /** * @ignore - internal hook. * * Provides a handler for text navigation. * It's used to navigate a list by typing the first letters of the options. * * @param callback A function to be called when the navigation should be performed. * @returns A function to be used in a keydown event handler. */ function useTextNavigation(callback) { const textCriteriaRef = React.useRef({ searchString: '', lastTime: null }); return React.useCallback(event => { if (event.key.length === 1 && event.key !== ' ') { const textCriteria = textCriteriaRef.current; const lowerKey = event.key.toLowerCase(); const currentTime = performance.now(); if (textCriteria.searchString.length > 0 && textCriteria.lastTime && currentTime - textCriteria.lastTime > TEXT_NAVIGATION_RESET_TIMEOUT) { textCriteria.searchString = lowerKey; } else if (textCriteria.searchString.length !== 1 || lowerKey !== textCriteria.searchString) { // If there is just one character in the buffer and the key is the same, do not append textCriteria.searchString += lowerKey; } textCriteria.lastTime = currentTime; callback(textCriteria.searchString, event); } }, [callback]); }